Energy Detection in Hoyt/Gamma Fading Channel with Micro-Diversity Reception
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Spectrum sensing is the important function of cognitive radio and energy detection is the most popular technique used for spectrum sensing. Detection of the availability of unused spectrum for the secondary user becomes difficult when the channel is affected by composite multipath/shadowed fading. In this paper, the performance analysis of an Energy Detector in Hoyt/gamma composite fading channel with Maximum Ratio Combining employing micro-diversity is analyzed. Analytical expressions for performance parameters, i.e., the average probability of detection and the average area under the receiver operating characteristics curve are evaluate. The effect of diversity on the performance of energy detector is also studied. Monte-Carlo simulation results have verified the accuracy of the proposed analysis.
KeywordsEnergy detection Micro-diversity Cognitive radio Receiver operating characteristic MRC
The authors would like to thank the anonymous reviewers for their useful suggestions for improving the presentation of the material in this paper.
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